Just how marbled is that cow's beef? You'll need to ultrasound it to find out

March 10, 2015 7:01 PM

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Floresville native Ethan Startz prodded and cajoled his black Wagyu heifer, Buttercup, into a "squeeze chute" in the back of NRG Center, then watched nervously as a rodeo worker locked his charge into place.

A few feet away, Lynn Allen patted down the heifer's pelt, then squirted a few long streams of vegetable oil from a plastic queeze bottle onto the animal's left ribcage.